Boat deck gas fill



FIG. 1 is a front, top, perspective view of a boat deck gas fill, showing my new design, with the cover closed and the broken line showing of the gas hose connection being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a rear, top, perspective view thereof with the cover closed;

FIG. 3 is a front, elevational view thereof with the cover closed;

FIG. 4 is a right side, elevational view thereof with the cover closed, it being understood that the left side is a mirror image thereof;

FIG. 5 is a top, plan view thereof with the cover closed;

FIG. 6 is a bottom, plan view thereof with the cover closed;

FIG. 7 is a rear, elevational view thereof with the cover closed; and

FIG. 8 is a front, top, perspective view thereof with the cover open. 

The ornamental design for a boat deck gas fill, as shown and described. 